I built a few Guillows models when I was younger. They're fine for what they are - - scale-like models for static display. The wood is always marginal and the designs aren't really meant to be good flyers. You'd have to be a patient, careful builder to know which bits of wood to junk, how to modify the tails for control surfaces, and how to install all of the power system and servos. None of that will be on the plans. The wing doesn't likely have enough dihedral for it to work well as a three-channel model, so you'll either have to increase the dihedral or figure out how to build in ailerons.

In the end, you'll have a very marginal model. Far better to buy something that is actually designed to be flown RC. Just because it is a Cessna doesn't mean it will be a good RC trainer.

If you're flying in an area smaller than a football field, you'll want to look at indoor models. That's just too small of a space in which to fly anything else, particularly as a beginner.